:root{--bg: #f3f6fb;--surface: #fdfefe;--surface-border: #dbe3ee;--field-border: #c5d1e0;--accent: #1f6feb;--accent-soft: #bcd6ff;--text-main: #16233b;--text-muted: #54607a;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;color:var(--text-main);background:radial-gradient(circle at top right,#e8f0ff,transparent 42%),radial-gradient(circle at left center,#e8fff4,transparent 38%),var(--bg)}.app{max-width:1180px;margin:0 auto;padding:2rem 1rem 2.5rem}.app h1{margin:0 0 1rem;font-size:1.75rem;color:var(--text-main)}.workspace{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.panel{background:var(--surface);border:1px solid var(--surface-border);border-radius:10px;padding:1rem;display:flex;flex-direction:column;gap:.75rem;min-height:560px}.panel-label{font-size:.9rem;font-weight:600;color:var(--text-main)}.sql-textarea{width:100%;min-height:220px;resize:vertical;border:1px solid var(--field-border);border-radius:8px;padding:.75rem;font-size:.9rem;font-family:Consolas,Courier New,monospace;line-height:1.45;color:var(--text-main);background:#fff}.sql-textarea:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}.warning{margin:0;background:#fff3cd;border:1px solid #ffd470;color:#7a5500;border-radius:8px;padding:.65rem .75rem;font-size:.88rem}.columns-box{border-top:1px solid var(--surface-border);padding-top:.75rem;display:flex;flex-direction:column;gap:.55rem}.columns-box h2{margin:0;font-size:1rem;color:var(--text-main)}.columns-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.45rem .75rem}.checkbox-row{display:flex;align-items:center;gap:.45rem;font-size:.9rem;color:var(--text-main)}.muted{margin:0;color:var(--text-muted);font-size:.88rem}.actions{margin-top:auto;display:flex;align-items:center;gap:.55rem;flex-wrap:wrap}.actions button{border:1px solid var(--accent);background:var(--accent);color:#fff;border-radius:8px;font-size:.9rem;padding:.55rem .9rem;cursor:pointer}.actions button:disabled{cursor:not-allowed;opacity:.55}.actions button:nth-child(2){background:#fff;color:var(--accent)}.copy-status{font-size:.85rem;color:#2f5c3b}@media(max-width:960px){.workspace{grid-template-columns:1fr}.panel{min-height:initial}}